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Cytek Biosciences, Inc.

CTKB
Exchange
Nasdaq
Industry
Laboratory Analytical Instruments
SEC CIK
0001831915

No open-market purchases or sales by Cytek Biosciences, Inc. insiders were filed in the last 90 days; 154 institutions reported holding it in 13F filings for Q2 2026, worth $361.0M in total; HHLR Advisors (Hillhouse) is the only superinvestor holding it.

Q4 2021 vs. Q3 2021

How the institutions holding Cytek Biosciences, Inc. changed between Q3 2021 and Q4 2021.

All holders in Q4 2021All holders in Q3 2021

13F holders of CTKB: Q3 2021 compared with Q4 2021
MeasureQ3 2021Q4 2021Change
Holders5452−2
Shares34.4M35.0M+686.9K (+2.0%)
Value$733.8M$571.9M−$161.9M (−22.1%)

New holders (11)

Institutions that held Cytek Biosciences, Inc. at the end of Q4 2021 but not at the end of Q3 2021.

Institutions new to CTKB in Q4 2021
InstitutionSharesValue% of portfolio
Ergoteles LLC177,001$2.89M0.11%
Renaissance Technologies LLC109,000$1.78M0.00%
Parametric Portfolio Associates LLC77,737$1.27M0.00%
Parkwood LLC32,327$528.0K0.09%
Allspring Global Investments Holdings, LLC19,204$313.0K0.00%
D. E. Shaw & Co., Inc.15,839$258.0K0.00%
Cornerstone Investment Partners, LLC11,500$188.0K0.01%
Victory Capital Management Inc10,700$175.0K0.00%
Manufacturers Life Insurance Company, The10,392$170.0K0.00%
Marshall Wace, LLP7,160$117.0K0.00%
The PNC Financial Services Group, Inc.435$7.00K0.00%

Sold out (13)

Institutions that held Cytek Biosciences, Inc. at the end of Q3 2021 and filed for Q4 2021 without it.

Institutions that sold out of CTKB in Q4 2021
InstitutionShares, Q3 2021Value, Q3 2021
Driehaus Capital Management LLC441,518$9.45M
Sectoral Asset Management Inc328,080$7.02M
Millennium Management LLC178,978$3.83M
Caas Capital Management LP100,000$2.14M
Ameriprise Financial Inc87,634$1.88M
Alyeska Investment Group, L.P.75,000$1.61M
Ghisallo Capital Management LLC50,000$1.07M
Cubist Systematic Strategies, LLC8,600$184.0K
SG Americas Securities, LLC6,890$148.0K
UBS Group AG831$18.0K
Point72 Hong Kong Ltd749$16.0K
US Bancorp320$7.00K
Reilly Financial Advisors, LLC79,979–